<TITLE>BGI Documentation for 
arc
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arc
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<DT><B>Syntax</B><DD>
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#include &lt;graphics.h&gt;
void arc(int x, int y, int stangle, int endangle, int radius);
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<DT><B>Description</B><DD>
arc draws a circular arc in the current drawing color centered at (x,y) with a radius given by radius. The arc travels from stangle to endangle. If stangle equals 0 and endangle equals 360, the call to arc draws a complete circle.
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The angle for arc is reckoned counterclockwise, with 0 degrees at 3 o'clock, 90 degrees at 12 o'clock, and so on.
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The linestyle parameter does not affect arcs, circles, ellipses, or pie slices. Only the thickness parameter is used.
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If you are using a CGA in high resolution mode or a monochrome graphics adapter, the examples in online Help that show how to use graphics functions might not produce the expected results. If your system runs on a CGA or monochrome adapter, pass the value 1 to those functions that alter the fill or drawing color (setcolor, setfillstyle, and setlinestyle, for example), instead of a symbolic color constant (defined in graphics.h).


<P><DT><B>Return Value</B><DD>
None.



<P><DT><B>See also</B>
<DD><A HREF="circle.html"> circle </A>
<DD><A HREF="ellipse.html">ellipse  </A>
<DD><A HREF="fillellipse.html">fillellipse  </A>
<DD><A HREF="getarccoords.html">getarcoords  </A>
<DD><A HREF="getaspectratio.html">getaspectratio  </A>
<DD><A HREF="pieslice.html">pieslice  </A>
<DD><A HREF="sector.html">sector  </A>


<P><DT><B>Example</B><DD>
<PRE>
/* arc example */ 

#include &lt;graphics.h&gt;
#include &lt;stdlib.h&gt;
#include &lt;stdio.h&gt;
#include &lt;conio.h&gt;

int main(void)
{
    /* request autodetection */
   int gdriver = DETECT, gmode, errorcode;
   int midx, midy;
   int stangle = 45, endangle = 135;
   int radius = 100;

   /* initialize graphics and local variables */
   initgraph(&gdriver, &gmode, "");

   /* read result of initialization */
   errorcode = graphresult();
   if (errorcode != grOk) {  /* an error occurred */

      printf("Graphics error: %s\n", grapherrormsg(errorcode));
      printf("Press any key to halt:");
      getch();
      exit(1);               /* terminate with an error code */
   }

   midx = getmaxx() / 2;
   midy = getmaxy() / 2;
   setcolor(getmaxcolor());

   /* draw arc */
   arc(midx, midy, stangle, endangle, radius);

   /* clean up */
   getch();
   closegraph();
   return 0;
}
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